Description
Apcalis-SX oral jelly (Tadalafil) 20 mg – 7 sachets
Apcalis-SX oral jelly is presented as a tadalafil product. Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor used for erectile dysfunction. The trade name and jelly formulation should be treated as product-identification clues; the verified medicine information below is based on tadalafil regulatory and scientific sources.
Active Ingredient and Medicine Class
Active ingredient: tadalafil.
Medicine class: phosphodiesterase type 5 (PDE5) inhibitor.
Tadalafil is a vasodilating medicine that acts on the nitric oxide-cGMP pathway in smooth muscle.
Established Medical Uses
Tadalafil is established for the treatment of erectile dysfunction in adult men. Regulatory sources also describe other approved uses for specific tadalafil products, including pulmonary arterial hypertension and, in some products, benign prostatic hyperplasia-related symptoms; however, product-specific approval depends on the exact formulation and licence.
How It Works
Tadalafil inhibits PDE5, an enzyme that breaks down cyclic guanosine monophosphate (cGMP). By preserving cGMP, it helps relax smooth muscle and increase blood flow in tissues where nitric oxide is active. In erectile dysfunction, this supports the physiologic process that produces an erection in response to sexual stimulation.
Important Safety Information
Tadalafil must not be used with organic nitrates because the combination can cause a dangerous fall in blood pressure. Caution is also required with alpha-blockers, other blood-pressure-lowering medicines, and strong CYP3A4 inhibitors, which can increase tadalafil exposure or intensify blood-pressure effects. It should not be used in people with a known serious hypersensitivity to tadalafil. Product information also warns about patients for whom sexual activity is inadvisable because of cardiovascular status.
Precautions include risk of priapism, especially in people with conditions such as sickle cell disease, multiple myeloma, or leukemia, or with penile anatomical abnormalities. Rare but serious eye and ear events have been reported, including sudden vision loss, non-arteritic anterior ischemic optic neuropathy, and sudden hearing decrease or loss.
Possible Side Effects
Common adverse effects include headache, dyspepsia, back pain, myalgia, flushing, nasal congestion, and sometimes limb pain. Other reported reactions include dizziness, abdominal discomfort, rash, visual disturbance, and palpitations.
Serious reactions reported in prescribing information include priapism, severe hypotension, hypersensitivity reactions, sudden vision loss, and sudden hearing loss. Postmarketing reports also include serious cardiovascular events in temporal association with tadalafil use.
Scientific Evidence
Clinical trials and reviews support tadalafil as an effective PDE5 inhibitor for erectile dysfunction, with benefit shown across different severities and patient groups. A systematic review found similar overall efficacy between once-daily and on-demand tadalafil regimens, with no significant difference in safety between those approaches. Longer-term studies reported that tadalafil was generally well tolerated, with headache and dyspepsia among the most common adverse events.
Medical Information Notice
This page is an educational summary based on sources available at the time of review. It does not replace the official patient leaflet, prescribing information, or assessment by a qualified healthcare professional.
Medical Sources
- FDA, CIALIS (tadalafil) tablets, for oral use — Prescribing Information: FDA source
- DailyMed, Tadalafil tablet — Prescribing Information: DailyMed source
- Gülpınar et al., “Efficacy and Safety of Tadalafil Once-a-Day versus Tadalafil On-Demand in Patients with Erectile Dysfunction: A Systematic Review and Meta-Analyses,” Sexual Medicine, 2017: PubMed article
